Overview
- Ohin Construction and six individuals were charged in court on June 11, 2026 for offences under the Building Control Act and Workplace Safety and Health laws following the July 26, 2025 sinkhole that swallowed a car and injured its driver.
- Court documents allege the firm carried out non‑compliant ground support work by installing 27 jet grout piles with smaller diameters than approved, skipping required penetration and strength tests, and making unauthorised openings and shape changes to reinforced concrete caisson rings.
- The Building and Construction Authority, Ministry of Manpower and Land Transport Authority completed joint probes and issued conditional warnings to PUB and Surbana Jurong Consultants for lapses in supervision, testing, monitoring and notification of an earlier road depression.
- Work at the Tanjong Katong sewer‑shaft remains halted and may only resume after PUB appoints new project parties who submit revised structural plans for comprehensive safety assessment and approval by the BCA Commissioner of Building Control.
- Ohin’s provisional liquidation and the adjourned court hearings to July 2026 complicate recovery of costs and liability, and the case will affect public confidence, future contractor oversight and what reviewers look for in similar deep‑excavation projects.